//package enumerations;// enumerations/ObjectMatch.java
//// (c)2021 MindView LLC: see Copyright.txt
//// We make no guarantees that this code is fit for any purpose.
//// Visit http://OnJava8.com for more book information.
//// {NewFeature} Preview in JDK 17
//// Compile with javac flags:
////   --enable-preview --source 17
//// Run with java flag: --enable-preview
//import java.util.*;
//
//record XX() {}
//
//public class ObjectMatch {
//  static String match(Object o) {
//    return switch(o) {
//      case Dog d -> "Walk the dog";
//      case Fish f -> "Change the fish water";
//      case Pet sp -> "Not dog or fish";
//      case String s -> "String " + s;
//      case Integer i -> "Integer " + i;
//      case String[] sa -> String.join(", ", sa);
//      case null, XX xx -> "null or XX: " + xx;
//      default -> "Something else";
//    };
//  }
//  public static void main(String[] args) {
//    List.of(new Dog(), new Fish(), new Pet(),
//      "Oscar", Integer.valueOf(12),
//      Double.valueOf("47.74"),
//      new String[]{ "to", "the", "point" },
//      new XX()
//    ).forEach(
//      p -> System.out.println(match(p))
//    );
//  }
//}
///* Output:
//Walk the dog
//Change the fish water
//Not dog or fish
//String Oscar
//Integer 12
//Something else
//to, the, point
//null or Object: XX[]
//*/
